CM-3N UHF RFID Module (1-Port) Barcode Scanner
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Description
The Chainway CM-3N is an ultra-compact 1-Port UHF RFID module designed with the Impinj E310 chip, offering reliable and professional-grade RFID performance in a miniature form factor. Measuring just 31.0 ร 19.0 ร 3.1 mm and weighing only 3 g, this module is ideal for handheld terminals, card issuers, medical equipment, and integrated all-in-one RFID systems. Despite its small size, the CM-3N delivers outstanding UHF reading and writing performance with low power consumption, high stability, and superior anti-interference capability.
With Impinj Gen2X support, the CM-3N ensures fast, stable, and accurate tag reading, making it suitable for short-range RFID applications such as container logistics, inventory control, and healthcare asset tracking. The moduleโs efficient heat dissipation design and energy-saving architecture make it perfect for continuous use in compact and mobile devices.
The CM-3N offers adjustable RF output power (5โ30 dBm) and communicates via a UART 3.3V TTL interface, ensuring easy integration into a wide range of embedded systems. Its strong electromagnetic resistance, excellent consistency, and stable output make it a top choice for applications where reliability and compactness are essential.
In short, the Chainway CM-3N combines miniature design, robust performance, and energy efficiency โ a perfect solution for developers and system integrators who need compact UHF RFID functionality without compromise.
Key Features
Built on Impinj E310 chip for efficient and reliable UHF RFID performance
Supports Impinj Gen2X for enhanced tag read/write reliability
Compact and lightweight design: 31.0 ร 19.0 ร 3.1 mm; only 3 g
Low power consumption, ideal for handheld or embedded applications
Superior heat dissipation ensures consistent operation
Excellent electromagnetic interference resistance
Adjustable output power: 5โ30 dBm with 1 dB precision
Short-range read capability up to 10 meters (with 4dBi antenna & M750 tag)
High stability and durability for industrial and medical environments
Perfect for container logistics, healthcare, asset management, and retail automation
Technical Specifications
| Category | Specification |
|---|---|
| Physical Characteristics | |
| Dimensions | 31.0 ร 19.0 ร 3.1 mm |
| Weight | 3 g / 0.11 oz |
| RFID Features | |
| RF Chip | Impinj E310 |
| Impinj Gen2X | Supported |
| Air Interface Protocol | EPCglobal Gen2 (ISO18000-6C) |
| Working Frequency | 865โ868 / 920โ925 / 902โ928 MHz (customizable) |
| Output Power | 5โ30 dBm adjustable; 1 dB step; ยฑ1 dB precision |
| Antenna Interface | I-PEX coaxial connector (U.FL-R-SMT-1) |
| Regions Supported | FCC 902โ928 MHz; ETSI 865.6โ867.6 MHz; China 920โ925 MHz; other regions customizable |
| Communication Interface | |
| Connector | PCB stamp hole welding |
| Host Communication | UART 3.3V TTL level |
| Baud Rate | 115200 bps |
| Power Supply | |
| Input Voltage | DC 3.5โ5.25 V |
| Power Consumption (RF Output Mode) | 4.3 W @ 27 dBm |
| Power Consumption (Standby Mode) | 0.175 W (EN high TTL level) |
| Power Consumption (Power Down Mode) | 42.5 ฮผW (EN low TTL level) |
| User Environment | |
| Operating Temperature | -25ยฐC to +65ยฐC / -13ยฐF to +149ยฐF |
| Storage Temperature | -40ยฐC to +85ยฐC / -40ยฐF to +185ยฐF |
| Humidity | 10% โ 95% |
| Reading Performance | |
| Reading Rate | > 50 tags/s |
| Reading Range | Up to 10 m (with 4dBi antenna & M750 tag) |
